Agree. From my experience, these guys are exceptional ball strokers. If the kid in the white shirt is only 15, then it would seem that he could eventually become an extremely proficient tennis player ... maybe even a regular international tournament player on some level.

EDIT: Who's Mark?

Mark Draper is the other player in the video who is a former pro. I searched up the guy is in the white shirt, hes qualified for a futures tournament before and is top 100 nationally in Australia.

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